Conic Premium 2 Piece 4" Paring Ceramic Cutlery Knife Set Ck003 (Black) Conic Premium 2 Piece 4" Paring Ceramic Cutlery Knife Ck003 with 1 Sheaths Ceramic blades ground to microscopic precision by diamond wheels for rock-like edge with excellent sharpness retention Blades are totally impervious to acids, juices, oils, salts or other elements; will never rust Lightweight, extremely balanced in the hand; ergonomic handle reduces fatigue during repetitive cutting Hand wash only; sharpen using Kyocera electric sharpener or mail to Conic for free sharpening